Performance Enhancement of Underwater Acoustic OFDM Communication Systems

The supported bandwidth of the underwater communication systems is limited to several kilo hertz, which considers as the main challenge for Underwater Acoustic (UWA) communications. Meanwhile, the Bit-Error-Rate (BER) performance of the UWA systems is degrades as a result of water temperature, water...

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Vydáno v:Wireless personal communications Ročník 108; číslo 4; s. 2047 - 2057
Hlavní autoři: El-Mahallawy, Mohamed, TagEldien, Adly S., Elagooz, Salah S.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Springer US 01.10.2019
Springer Nature B.V
Témata:
Algorithms
Attenuation
Coding
Communications Engineering
Communications systems
Computer Communication Networks
Computer simulation
Engineering
Error correcting codes
Fast Fourier transformations
Fourier transforms
Networks
Orthogonal Frequency Division Multiplexing
Performance enhancement
Signal,Image and Speech Processing
Underwater acoustics
Underwater communication
Water temperature
Orthogonal frequency division multiplexing
Law density parity check matrix
Underwater acoustics
Fast Walsh–Hadamard transform
Fast Fourier transform
ISSN:0929-6212, 1572-834X
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Shrnutí:The supported bandwidth of the underwater communication systems is limited to several kilo hertz, which considers as the main challenge for Underwater Acoustic (UWA) communications. Meanwhile, the Bit-Error-Rate (BER) performance of the UWA systems is degrades as a result of water temperature, water salinity, attenuation, and multi-path propagation. In this paper, we present a modification to the conventional Orthogonal Frequency Division Multiplexing (OFDM) based (FFT) using Fast Walsh–Hadamard transform (FWHT) instead of Fast Fourier Transform (FFT). Also, the proposed algorithm is encoded and decoded using Low Density Parity Check (LDPC) coding algorithm. Simulation results show that the proposed algorithm with LDPC coding can improve the BBER system performance than the corresponding traditional one.
Bibliografie:ObjectType-Article-1
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ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-019-06508-6